In a survey of 165 students, it was found that 65 students use Facebook, 85 students useInstagram, 50 students use Twitter, 25 students use both Facebook and Instagram, 15 studentsuse both Facebook and Twitter, 20 students use both Twitter and Instagram, 10 students useall three social media platforms (Facebook, Instagram and Twitter).(a) Find the number of students who use exactly one of the three social media platforms.(b) Find the number of students who use none of the three social media platforms.

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Answered: In a survey of 165 students, it was…

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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